CN104162979B - Dual tenter clip and table assembly and transverse sheet stretching plants comprising same - Google Patents
Dual tenter clip and table assembly and transverse sheet stretching plants comprising same Download PDFInfo
- Publication number
- CN104162979B CN104162979B CN201410203467.6A CN201410203467A CN104162979B CN 104162979 B CN104162979 B CN 104162979B CN 201410203467 A CN201410203467 A CN 201410203467A CN 104162979 B CN104162979 B CN 104162979B
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- China
- Prior art keywords
- stenter
- pincers
- main body
- chain
- polymeric material
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/20—Edge clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
- B29C55/08—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique transverse to the direction of feed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/256—Sheets, plates, blanks or films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/005—Oriented
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Advancing Webs (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present invention relates to a dual tenter clip and table assembly (10) for moving, by means of an endless chain (50) consisting of alternating pairs of first chain links (51) and pairs of second chain links (52) rotatably connected by means of pins (53) arranged in parallel to the plane of the rail (60) and perpendicular to the direction of the endless chain's movement, a polymer material web (100) on a stretching plant or stretching device for stretching said polymer material web (100) at least in a transverse direction (T), said assembly (10) comprising a main clip body (20) comprising a main clip body carriage (22) having a plurality of wheels (24a, 24b, ....) moving the carriage (22) along a rail (60) by means of said endless chain (50) to which the carriage (22) of the main clip body (20) is fixed; said carriage (22) of the main clip body (20) being fixed to the endless chain (50).
Description
Technical field
The present invention relates to material sheet or film, particularly oriented polymeric material sheet material or film are stretched on stretcher
Technology.Especially, the present invention relates to stretch material sheet or film on this stretcher in a lateral direction, particularly it is polymerized
The field of the method for thing material sheet or film, is directed to the device of the cross directional stretch of improvement polymer material sheet or film, described
Device forms the part of overall tensile equipment.
Background technology
The first step of the overall process of oriented film of the manufacture comprising polymeric material is by molten polymer by die head
Film extrude to roller (" chill roll "), the surface of the roller is maintained at the temperature below the glass transition temperature of respective polymer
Degree.Polymer is quenched into amorphous state by roller surface.
The subsequent step of the process is included on longitudinal direction (machine) direction and/or stretches through public affairs in a lateral direction
Perception method is usually perpendicular to the direction of machine direction the step of stretching the step of the film for producing before in a lateral direction
On stretching step.These stretching steps can be carried out in succession, or can be carried out simultaneously, or or even can for example in a lateral direction
Carry out only one stretching step.
In the case of continuously elongated, drawing process itself is carried out by two machine units, generally first in longitudinal direction/machine
On direction (on the direction of the travel path i.e. in polymeric film on stretching device), then in a lateral direction.Draw at the same time
In the case of stretching, the pulling action on longitudinal direction (machine) direction and horizontal direction needs tensile force in the two directions (generally
It is perpendicular to one another) it is administered simultaneously to membrane material, while mobile route of the film on stretcher or stretching device along film is with a high speed
It is mobile.Polymeric film is moved along longitudinal path on the stretcher or stretching device by support, substantial amounts of described
Frame is fixed to endless-chain, and is pulled by endless-chain to run on the track on the both sides of the longitudinal path, the axial route
Footpath or on wheel, or on the sliding component between support and track.Two relative lateral edges of polymeric film lead to
Cross fixture to be fixed on the described two relative support on tentering board, support strained polymer in a longitudinal direction
Film, and also stretched film or only stretched film in a lateral direction in a lateral direction as the case may be.
Once one or more draw steps are completed, then Jing draws polymeric film " thermocoagulation " or under tension and temperature
Crystallize under gradient, the thermograde originates in high temperature, and proceeds to low temperature.The thermocoagulation step prevents film from shrinking back which not
Tension shape, and molecularly oriented " is locked " in polymeric film plane.The orientation of thus obtained polymer molecular chain produces fixed
To the high intensity and hardness of film.
Together with molecularly oriented, the formation of polymer nucleus is caused.Crystallite fast-growth, and reach adjacent crystallite
Border.Their wavelength for being smaller in size than visible ray.Although as a result, the semicrystalline structure of polymer unit, orients poly-
Compound film has the excellent transparency.Especially, the polymeric film for being obtained by simultaneously biaxial drawing has excellent machinery
Property and light property, therefore suffer from paying much attention to.
It is at the end of the stretching of stretcher or stretching device and thermocoagulation region, two lateral edges of polymeric film are solid
It is fixed to discharge film to the fixture on the tentering board of support from tentering board, the film roll being obtained and stretch is around in film storage roller
Or be processed further, and support (its fixture is discharged from tentering board) is back to the starting point of drawing process for another stretching
Circulation.
The stretcher or stretching device for cross directional stretch polymeric film is operated at present.This device is described in
Document WO-A2004/108, in 395, the document is related to polymer sheet tensioning system, the polymer sheet tensioning system
Using for supporting, transmit and pull a series of apparatus for fastening of polymeric film to be tensioned.This apparatus for fastening is by track
Support and guiding, and driven by endless-chain.Each chain is driven by two larger-diameter toothed wheels, and a wheel is located at positive operation
Starting point, another wheel be located at chain return operation rear end.Each wheel is provided with motorization rotational driving device, described
Driving equipment is synchronized with each other.This driving means have application in high speed pulling machine.
These stretchers of prior art or stretching device have the disadvantage in that, particularly wherein support by track 60
In the case of endless-chain driving on mobile wheel (referring to Fig. 1), each two chain connection (chain link) only exists one
Long tentering board, the pincers fixed polymer web of the tentering board.Therefore, tentering board is fixed to a chain connection,
And almost extend in whole next one chain connection.Herein, term " chain connection " is for claims of the present invention and says
Connected with representing the outside plate (" exterior chain connection 51 ") and inner panel (" interior chain connection 52 ") of endless-chain 50, the outside plate and inner panel in bright book
The center of two continuous pins 53 of the rotation axiss for limiting chain connection is connect, as shown in exemplary in Figure 1A and 1B.In fig. ib,
Chain pitch (limiting the distance between center of two continuous pins 53 of rotation axiss of chain connection) is expressed as " P ".Several
Extend in two chain connections, the length with slightly shorter than 2P (wherein " P " is pitch as defined above) simultaneously passes through a pincers
One long tentering board of fixed polymer web produces certain rigidity that polymer web is fixed, so as to often result in drawing
Stretch ground mobile web during produced by polymer web gauffer.The polymer web of this gauffer deterioration drawn
Quality, and therefore be undesirable.
It is an object of the invention to overcome these and other shortcomings of prior art.Overcome these shortcomings unexpected
Realize in the following way on ground：Double stenter pincers are provided, and in being drawn by wheel including main pincers main body and time pincers main body
The tentering board of the connection on pincers carriage assembly led.Therefore, platform length is preferably reduced to the tentering board of prior art
Length almost 50%.Additionally, the greater flexibility of polymer web movement for stretching step, can be obtained, and for
One or more stretching steps, are more safely fixed to each shorter tentering board along with mobile polymer web.Cause
This, can reduce and even entirely prevent the appearance of gauffer.
The content of the invention
Therefore, the present invention relates to a kind of pair of stenter pincers and platform component, which is used in stretcher or stretching device
Polymeric material web is moved by endless-chain, the stretcher or stretching device are used at least stretch in a lateral direction
The polymeric material web, the endless-chain are connected to connecting to constituting with interior chain by alternate exterior chain, described alternate outer
Chain connection is to connecting to rotatable by the pin arranged parallel to orbit plane and perpendicular to the direction of endless-chain movement with interior chain
Connection, the component include
- main pincers main body, the main pincers main body include main pincers main body rack, and the main pincers main body rack has logical
Multiple wheels that the endless-chain moves the support along track are crossed, the support of the main pincers main body is fixed to the circulation
Chain；
The support of-main pincers the main body also includes tentering board, and polymeric material web to be tensioned is by drawing
Width machine pincers is fixed on the tentering board；And
The support of-main pincers the main body is fixed to the first chain connection of the endless-chain, institute by vertical pin
Vertical pin is stated parallel to the connection of the first and second chains of connection and at least one structure division through the main pincers main body
Pin is arranged；
And the component also includes
- secondary pincers main body, described time pincers main body includes time pincers main body rack, the support of described pincers main body
Also include tentering board, polymeric material web to be tensioned is fixed on the tentering board by stenter pincers；And
The support of-described pincers main body is fixed to the second chain connection of the endless-chain, institute by vertical pin
Vertical pin is stated parallel to the connection of the first and second chains of connection and at least one structure division through described pincers main body
Pin is arranged；
- described pincers wherein on two sides relative with the outer wall of one or two adjacent main pincers main body rack
The outer wall of the support of sub- main body shapes in the following manner：Prevent described pincers main body rack the outer wall and one or
The wall contacts of two adjacent main pincers main body racks.
The preferred embodiment of double stenter pincers and platform component of the present invention requires to protect in dependent claims 2 to 11
Shield.
The present invention also relates to a kind of at least horizontal sheet material stretching of oriented polymeric material web in a lateral direction
Equipment, the equipment include
- for providing the polymeric material web of stretched operation at least in a lateral direction to be subjected at least one sets
It is standby；
- for adjusting at least one equipment of the temperature of polymeric material web provided in step before；
- can at least stretcher or stretching device of oriented polymeric material web in a lateral direction, the stretching
Equipment or stretching device include the multiple pairs of stenter pincers and platform group of the detailed description of the following present invention of longitudinal path, basis
Part, track, the longitudinal path allow polymeric material web to pass through along which during stretching step；Described pair of stenter
Pincers and platform component can be in release polymers web of material for be tensioned poly- of the front clamp that stores or be processed further
Compound web of material, and fix the movement polymeric material web along the longitudinal path and thus stretch the polymer
Web of material；The track is in the both sides of the longitudinal path, and allows described pair of stenter pincers and platform component to transport thereon
OK, and while moved along the longitudinal path by endless-chain, in release polymers material and after stretching step terminates
The starting point of stretching step is back to after web；And
- on the stretcher or stretching device before stretching step after for storing polymeric material web
Or the polymeric material web of transmission drawn is at least one equipment that is processed further.
The present invention also relates to a kind of at least method of oriented polymeric material web in a lateral direction, methods described
Including
The polymeric material web of-offer stretched operation at least in a lateral direction to be subjected；
- the polymeric material web provided in step before is fed to the stretching of stretcher or stretching device
In path；
The temperature of the polymeric material web that-regulation is fed in step before；
- polymeric material web that temperature is adjusted in step before is fed to stretcher or stretching device, described
Stretcher or stretching device being capable of at least oriented polymeric material web, the stretcher or stretching dresses in a lateral direction
Put including longitudinal path, according to the multiple pairs of stenter pincers and platform component, track of following detailed description of the invention, it is described vertical
Polymeric material web is allowed to pass through along which during stretching step to path；Described pair of stenter pincers and platform component energy
It is enough in release polymers web of material for the front clamp that stores or be processed further polymeric material web to be tensioned, and
The movement polymeric material web is fixed along the longitudinal path and the polymeric material web is thus stretched；The rail
Road is in the both sides of the longitudinal path, and allows described pair of stenter pincers and platform component to run thereon, and while along institute
State longitudinal path to be moved by endless-chain, and drawing is back to after release polymers web of material after stretching step terminates
Stretch the starting point of step；And
- on the stretcher or stretching device before stretching step after store polymeric material web or biography
The polymeric material web of defeated drawn is for being processed further.
Description of the drawings
The present invention is described in further detail by referring to accompanying drawing now.Accompanying drawing shows the preferred embodiments of the invention,
The preferred embodiment is used to more fully understand the present invention, but should not be construed as the restriction present invention.And, further description
Related to preferred embodiment, the present invention should not be limited to the preferred embodiment.
In the accompanying drawings,
Figure 1A shows the top view of the common constitution of track and endless-chain in stretcher or stretching device, carries and draws
The support and stenter pincers of width board is moved on the track, and the endless-chain that is moved through of the support is realized；
Figure 1B shows the side view of the same configuration shown in Figure 1A, is especially showing the alternate of endless-chain
First/outer chains connection to and second/internal chain connection it is right.
Fig. 2 show the present invention double stenter pincers and platform component a preferred embodiment axonometric chart, its
Moved along track by endless-chain during drawn polymer web of material；
Fig. 3 shows double stenter pincers and the identical preferred embodiment of platform component of the present invention as shown in Figure 2
Top view, wherein exemplarily show pitch P (i.e. limit chain connection rotation axiss two continuous pins 53 center it
Between distance) and stenter platform length TL；
Fig. 4 shows the stereo rearview of double stenter pincers and platform component 10 of the present invention, and show in particular master
Stenter pincers main body 20 is fixed to the first chain connection 51 of endless-chain 50, and secondary stenter pincers main body 30 is fixed to circulation
The second chain connection 52 of chain 50；
Fig. 5 A show the present invention double stenter pincers and platform component 10 vertical view side plan view, the view similar to
The view of Fig. 3, but this as shown in Fig. 6 A, 6B and 7 is shown also by two dotted lines represented by " 6A " and " 6B " and " 7 "
The position of the sectional view of bright double stenter pincers and platform component 10；
Fig. 5 B show double stenter pincers and platform component 10, particularly following region of the present invention as shown in Figure 5A
Side view is overlooked and is amplified, in this region, main stenter pincers main body 20 relative to each other and time stenter pincers main body 30
Outer wall it is closely adjacent；
Fig. 6 A show the section view of the main stenter pincers main part of Fig. 5 A at " 6A " place；
Fig. 6 B show the section view of the main stenter pincers main part of Fig. 5 A at " 6B " place；
Fig. 7 shows the section view of the secondary stenter pincers main part of Fig. 5 A at " 7 " place；
Fig. 8 A show the vertical view side plan view of double stenter pincers and platform component 10 of the present invention, wherein being combined with two pairs
Double main stenter pincers main bodys-secondary stenter pincers body assembly 10；And
Fig. 8 B show the vertical view side plan view of double stenter pincers and platform component 10 of the present invention, wherein being combined with three pairs
Double main stenter pincers main bodys-secondary stenter pincers body assembly 10.
Reference numerals list
10 pairs of stenter pincers and platform component
20 main stenter pincers main bodys
The main stenter pincers body outer walls of 20a
22 main stenter pincers main body racks
24a, 24b ... wheel
The tentering board of 26 main stenter pincers main bodys 20
The stenter pincers of 28 main stenter pincers main bodys 20
29 for being fixed to first/exterior chain by main stenter pincers main body
The vertical pin of connection 51
No. 30 stenter pincers main bodys
30a stenter pincers body outer wall
No. 32 stenter pincers main body racks
The tentering board of No. 36 stenter pincers main bodys 30
The stenter pincers of No. 38 stenter pincers main bodys 30
39 for being fixed to second/interior chain by secondary stenter pincers main body
The vertical pin of connection 52
50 endless-chains
First/exterior chain connection of 51 endless-chains 50
The second of 52 endless-chains 50/interior chain connection
53 are rotatably attached exterior chain connection and interior chain connection 51,52
Pin.
60 tracks
100 polymeric material webs or polymeric film
200 horizontal sheet material stretchers
T cross directional stretchs direction
L longitudinal stretchings direction
TL stenter platform length
P pitches.
Specific embodiment
Referring now to accompanying drawing so that the present invention to be described in further detail.
As used such as (such as in claim 1) in the present specification and claims, term " including " is with containing as follows
Justice：Double stenter pincers and platform component of the present invention, or the horizontal sheet material stretcher of the present invention, or the method for the present invention can be wrapped
(i) equipment or step are included, or may include (ii) two or more equipment or step, such as such as claim 1 or power
Profit required described in 11 or claim 12, or the component of (iii) present invention, device or method may also comprise in addition
Part, equipment, method and step etc. (more specifically defined below).
However, as used by the specification and claims, term " including " may also comprise following situation：The present invention's
Double stenter pincers and platform component, or the horizontal sheet material stretcher of the present invention, or the method for the present invention is mainly by (i) at least
Individual equipment or step composition, or it is main by two described in (ii) such as claim 1 or claim 11 or claim 12
Individual or more equipment or step, and optional those skilled in the art are may include in this component or device or side
Constituted with any necessary parts or equipment or method and step of realizing the purpose of the present invention in method, or term " including " can be even
Including following situation：The component or device of the present invention is only made up of (i) at least equipment or step, or only by (ii)
Two or more equipment or step, and optional but non-essential those skilled in the art may include in this component or set
Realizing the compositions such as any necessary parts of the purpose of the present invention, equipment, method and step in standby or device or method.Especially exist
(wherein as used herein the specification and claims, term " including " can have containing for " only by ... constitute " to latter case
Justice) in, the dependent claims (subclaim) of the application may call for protecting and the corresponding part of description can describe other
Preferred embodiment, the other preferred embodiment are characterised by the feature specified in addition, the spy for specifying in addition
The combinations of features for levying the corresponding part with independent claims and description is summarized as belonging to such as required for protection in the present invention
The present invention of description in widest scope.
In other words：Term " including " can have the non-exhaustive list of description key element in the present specification and claims
Implication, or the implication that can be enumerated with the exhaustion for describing key element in the present specification and claims, in latter case
It is not excluded for by the other preferred embodiment of other characteristic present.
Referring now to Figure 1A, 1B and Fig. 2.In figs. 1 a and 1b, the first chain connection 51 of endless-chain 50 is shown as thick line, with
(vision ground and in figure) is connected 52 and is distinguished with the second chain of the endless-chain 50 shown with general print wire.
Figure 1A shows the top view of the common constitution of track 60 and endless-chain 50 in stretcher or stretching device, takes
Support with tentering board and stenter pincers moved on the track 60, and the support is moved through the endless-chain 50
Realize.In figure ia, rotatably connection first connection 51 and second connection 52 it is continuous to pin be shown as tool
There is reference " 53 ".Plane of these connecting pins 53 parallel to track 60, and the moving direction perpendicular to endless-chain 50 sets
It is placed in and is close in the hole that chain connects the upstream and downstream end of each in 51,52.
In figs. 1 a and 1b, rotatably (connection of the first chain is allowed to be connected to the around by the first chain
Two chains connection pin 53 rotate) connection exterior chain connection and interior chain connect 51,52 it is continuous to pin 53 only in Figure 1A and 1B
Shown in the right part of endless-chain section show, and in order to accompanying drawing it is clear the reason for, omit the chain shown in Figure 1A and 1B
The pin of the respective left part of section.
Figure 1B shows the side view of the same configuration shown in Figure 1A, particularly exemplarily shows endless-chain
50 alternate first chain connection to 51 and second chain connection to 52.According to the present invention, " connection of the first chain " is as above expressed as
Chain connection 51 can connect for chain " outward ", and the chain connection 52 for being expressed as " connection of the second chain " can connect for " interior " chain.Or, also root
Do not show according to the present invention but in fig. ib, the chain connection 51 for being as above expressed as " connection of the first chain " can connect for " interior " chain, and table
The chain connection 52 for being shown as " connection of the second chain " can connect for chain " outward ".In the present invention preferably, as above it is expressed as " the first chain company
Connect " chain connection 51 be chain " outward " connection, and be expressed as " connection of the second chain " chain connect 52 be " interior " chain connection, base of the present invention
It is described below in the preferred embodiment.
Thus, term " outward " and " interior " and endless-chain 50 along track 60 move when along endless-chain 50 visual angle phase
Close：A pair first or exterior chain connect the highest and lowest position that 51 (shown in Figure 1B) take chain to connect during endless-chain 50
Put, and the centre position between two first/exterior chains connection 51 is taken in a pair second or interior chain connection 52.
Fig. 2 shows (which is perpendicular to the direction of track 60) the drawn polymer web of material at least in a lateral direction
During 100, by endless-chain 50 along track 60 move when the present invention double stenter pincers and platform component 10 one
The full perspective view of individual preferred embodiment.
According to Fig. 2, can also exist seen in detail in the present invention as described below preferred embodiment, the embodiment
Schematically show in Fig. 3 and 5a：Main stenter pincers main body rack 22 is moved along track 60, and while is run on wheel.
These wheels have bigger diameter on the side of track 60, and the side of the track 60 is existed with main stenter main body rack 22
Side thereon with stenter pincers 28 and tentering board 26 is relative.The advantage of this embodiment is, this major diameter
Wheel can easily bear power from the stretching step on the opposite side of track 60, and carrying out the rail at stretching step
The wheel of the minor diameter on road side is used for the main stenter pincers main body rack of smooth guide 22.In addition, the embodiment into
This saving and lower weight can be favourable.
Fig. 3 shows double stenter pincers and the identical preferred embodiment of platform component of the present invention as shown in Figure 2
Top view.In figure 3, exemplarily show pitch P (in two continuous pins 53 of the rotation axiss for limiting chain connection
The distance between heart) and stenter platform length TL.
Such as by known in the art, tentering board has the length for almost extending in two chains connections, polymeric material
Web 100 is fixed to the tentering board for stretching by stenter pincers.Therefore, a tentering board has almost 2P
Length, or in a particular embodiment, a tentering board has the length of accurately 1.5P to 1.96P.Especially, exist
Make polymeric material web edge keep attachment tentering board must during stretching step along polymeric film road
In the case of footpath surrounds curve movement, problem is this generates：Gauffer is observed generally in polymeric film, polymerization is thus deteriorated
The optics and intensity quality of thing film.
Such as can be found out by Fig. 3, (wherein P is with 1P is slightly less than for of the invention pair of stenter pincers and platform component 10
The pitch of endless-chain 50) length (stenter platform length TL), more preferably 0.75P to 0.98P (i.e. 0.75P≤TL≤0.98P),
Even more preferably 0.90P to 0.94P (i.e. 0.90P≤TL≤0.94P).
According to the present invention, the stenter platform length of main stenter pincers main body tentering board 26 can be with secondary stenter pincers master
The stenter platform length of body tentering board 36 is identical or different.In a preferred embodiment of the invention, main stenter pincers master
The stenter platform length of body tentering board 26 can be identical with the stenter platform length of secondary stenter pincers main body tentering board 36.
Fig. 5 A show the present invention double stenter pincers and platform component 10 vertical view side plan view, the view similar to
The view of Fig. 3.
Fig. 6 A, Fig. 6 B and Fig. 7 are shown in the main stenter pincers main part of Fig. 5 A at " 6A " and " 6B " place and in " 7 "
Several section views of the secondary stenter pincers main part of Fig. 5 A at place.
Such as can be found out by Fig. 2,3,5A, 6A, 6B and 7, double stenter pincers and platform component 10 of the present invention include main tentering
Machine pincers main body 20.Main stenter pincers main body is included with multiple wheel 24a, 24b ... 24n (wherein n=>Alphabetical " b's "
It is letter, such as alphabetical " c ", " d ", " e ", " f ", " g ", " h ", " I " and " j ") main stenter pincers main body rack 22.Wheel
24a, 24b, 24c ... 24n can move main stenter pincers main body rack 22 along track 60.Whole main stenter pincers masters
The endless-chain 50 that is moved through of body support frame 22 and time stenter pincers main body rack 32 realizes, the main stenter pincers master
Body support frame 22 and time stenter pincers main body rack 32 are fixed to the endless-chain 50.
In other words：The present invention double stenter pincers and platform component 10 along track 60 multiple wheel 24a, 24b,
24c ... is above directed, and is moved forward along track 60 by endless-chain 50, and the endless-chain 50 is by suitably driving wheel
Drive in a usual manner, endless-chain 50 is lifted around the driving wheel.Chain 50 can with drive wheel chain indented joint, thus
Bring endless-chain 50 controllable movement and while the present invention double stenter pincers and the controllable movement of platform component 10, it is described
First and second (such as outer and inner) chain connection 51,52 of chain 50 is rotatably attached each other by vertical pin 53.
According to the present invention, whole wheels of the plurality of wheel 24a, 24b, 24c ... are attached to main stenter pincers master
Body support frame 22, double stenter pincers and platform component 10 of the present invention are taken turns in the whole of the plurality of wheel 24a, 24b, 24c ...
Guide along track 60 on son.There may be contact on the position that the rotation axiss in wheel are vertically arranged track 60 wheel 24a,
24b ..., and/or there may be 24c, 24d ... that track 60 is contacted on the horizontally disposed position of rotation axiss of wheel.
In the preferred embodiments of the invention, the movement of main stenter pincers main body rack 22 is in two kinds of wheel (i.e. with perpendicular
Those wheels of direct rotary shaft axis and those wheels with horizontal axis of rotation) on produce.
In a particularly preferred embodiment of the present invention, main stenter pincers main body rack 22 is at most in quantity
Run on 10 wheels, even more preferably still run on quantity is for 9 wheels, the great majority of 9 wheels are with perpendicular
The wheel of direct rotary shaft axis, and arrange with 60 directly contact of track on two vertical surfaces of track.Even more preferably still and
As shown in Figure 2, there are four and go up horizontal wheel under horizontal wheels and four relative with horizontal wheel on described four.Compare it
Under, the 9th wheel (Fig. 2,4：24c) edge along track 60 is rotated around horizontal axis of rotation, as the tenth wheel
(Fig. 4：24d).Lower wheel 24d below is existed only at the main stenter pincers main body rack 22 of limited quantity, for example, exist
At the main stenter pincers main body rack 22 per the 5th, and move below the lower limb of track 60, and for by support 22
Keep in orbit.
According to the present invention, move forward power and circulation is fixed to by vertical pin 29 by main stenter pincers main body rack 22
The first chain connection 51 of chain 50 is (for example, as shown in the drawing：51) the exterior chain connection for being fixed to endless-chain 50 is transmitted to main drawing
Width machine pincers main body rack 22.It is also possible that the forward movement power applied by chain 50 passes through main stenter pincers main body rack 22
It is fixed to the interior chain connection 52 of endless-chain 50 and transmitted to the main 22 (enforcement of stenter pincers main body rack by vertical pin 29
Scheme is shown not in the drawings).
Compared to main stenter pincers main body rack 22, secondary stenter pincers main body rack 32 is not being guided along track 60
Wheel on move, but due to its be only fixed to endless-chain 50 second chain connection 52 and move.And, in secondary stenter pincers
In the case of main body rack 32, it is fixed to endless-chain 50 (being fixed to the second chain connection 52 in this case) or is fixed to endless-chain
50 interior chain connection 52 is connected 51 similar modes and passes through to erect to be fixed to the first chain with main stenter pincers main body rack 22
Sell nail 39 directly to households to realize.
In the case of it may be selected (as described above) (the forward movement power applied by chain 50 is by main stenter pincers main body
Support 22 is fixed to second/interior chain connection 52 of endless-chain 50 and is transmitted to main stenter pincers main body rack by vertical pin 29
22) the forward movement power for, being applied by chain 50 is fixed to endless-chain by vertical pin 39 by time stenter pincers main body rack 32
50 first/exterior chain connects 51 and transmits to secondary stenter pincers main body rack 32.
In a preferred embodiment of the invention, power is moved forward by main stenter pincers main body rack 22 by vertically selling
Nail 29 is fixed to first or exterior chain of endless-chain 50 and connects 51 (for example as shown in the drawing) and transmit to main stenter pincers master
Body support frame 22, while moving forward power is fixed to endless-chain 50 by vertical pin 39 by time stenter pincers main body rack 32
Second chain connection 52 is (for example as shown in the drawing：52) the interior chain connection for being fixed to endless-chain 50 is transmitted to secondary stenter pincers
Main body rack 32.
In a preferred embodiment of the invention, it is due to the more low weight of usual stenter pincers main body 30, vertically solid
Rationed marketing nail 39 is smaller than the vertical pin 29 for connecting 51 for the exterior chain that main stenter pincers main body 20 is fixed to endless-chain 50.
However, this is not intended to limit the present invention.
According to the present invention and as shown in Fig. 2,3,5A, 6A, 6B and 7, the support 22 of main stenter pincers main body 20 is also
Including tentering board 26, polymeric material web 100 to be tensioned or polymeric film 100 pass through at least one stenter pincers 28
And preferably one stenter pincers 28 is fixed on the tentering board 26.Those skilled in the art can be according to circumstances specifically to
Ask and the position of unrestricted choice tentering board 26 and stenter pincers 28.In the double stenter pincers and platform component 10 of the present invention
In preferred embodiment, tentering board 26 and (preferably one) stenter pincers 28 are positioned at " track " side phase with the support 22
To main pincers main body rack 22 side on, thus allow during stretching step polymeric material web 100 or polymerization
Thing film 100 is stably fixed to main stenter pincers main body rack 22.
Double stenter pincers and platform component 10 of the present invention also include time stenter pincers main body 30 as another element.It is secondary
Stenter pincers main body 30 includes time stenter pincers main body rack 32, and described stenter pincers main body rack 32 is by circulation
Chain 50 is moved along track 60, and described time stenter pincers main body rack 32 is fixed to the endless-chain 50.
According to the present invention and as shown in Fig. 2 secondary stenter pincers main body 30 the support 32 also include tentering board 36,
Polymeric material web 100 to be tensioned or polymeric film 100 pass through at least one stenter pincers 38 and preferably pass through one
Stenter pincers 38 is fixed on the tentering board 36.Those skilled in the art can be according to circumstances specific requirement and freely select
Select the position of tentering board 36 and stenter pincers 38.In the side of being preferable to carry out of double stenter pincers and platform component 10 of the present invention
In case, tentering board 36 and stenter pincers 38 are positioned at the relative secondary pincers main body rack 32 in " track " side with the support 32
Side on, thus also allow polymeric material web 100 or polymeric film 100 during stretching step to be stably fixed to time
Stenter pincers main body rack 32.
In the present specification and claims, the term " master " that combines with stenter pincers main body 20,30 respectively and
" secondary " is not necessarily to be construed as implying that any one of these stenter pincers main bodys are main or secondary for the function of the present invention has
Want importance.These terms are only selected that for distinguishing two stenter pincers main bodys 20,30, and can imply that preferably the former has
The overall dimension for having (relative) bigger and/or weight, and the latter is with (relative) more tiny overall dimension and/or weight.This
Both a little stenter pincers main bodys 20,30 all have obvious importance for the function of the present invention.
Such as can be derived with necessary preferred embodiment of the invention by describing in further detail for the present invention, the present invention's is double
Stenter pincers and platform component 10 are used for the mobile polymeric material web 100 on stretcher or stretching device or polymer
Film 100, the stretcher or stretching device be used at least stretch on horizontal direction T the polymeric material web 100 or
Polymeric film 100, the horizontal direction T are perpendicular to the direction of track 60.Polymeric material web 100 or poly- for stretching
This endless-chain 50 that is moved through of compound film 100 is realized.As shown in Figure 1A and 1B, the endless-chain 50 is by the friendship for continuously arranging
Replace the first chain connection 51 to and the second chain connection 52 to composition.In a preferred embodiment of the invention, as above first
Chain connects and connects 51 for exterior chain for as defined above, and as above the connection of the second chain is interior chain connection 52 for as defined above.
All chains connect through pin 53 and are rotatably connected each other, plane of the pin 53 parallel to track 60, and perpendicular to
The moving direction of endless-chain is arranged.
It is intended to indicate that using as above term " at least stretching the polymeric material web 100 in a lateral direction ", is used
Double stenter pincers and platform component 10 of the present invention, (are being substantially perpendicular on the direction of track 60) drawing in a lateral direction
The step of stretched polymer web of material 100, is carried out in any case.However, this should not exclude polymeric material web 10 distinguishing
Undergo one or more stretching steps in a longitudinal direction, such as in the horizontal stroke using double stenter pincers and platform component 10
To the stretching step of direction before or after.
Those skilled in the art are known for along polymeric material web according to prior art and the technological know-how of its own
The device of the path drives endless-chain 50 of material 100 or polymeric film 100.Therefore, the tool that those skilled in the art can be according to circumstances
Body is required and selects this driving equipment.In preferred embodiments, endless-chain 50 is by being appropriately arranged with stretching in suitable point
The wheel in the exit of equipment or stretching device porch and stretcher or stretching device drives.According to the religion of prior art
Lead, the circulation rate of the wheel of driving cycle chain is properly adjusted, and can be same or different.
Fig. 2 and 4 is to show double stenter pincers and platform component 10 in axonometric chart peace lateral side view, and specifically show
How main stenter pincers main body 20 is fixed to first/exterior chain connection 51 of endless-chain 50, and secondary stenter pincers main body 30
How second/interior chain connection 52 of endless-chain is fixed to.
According to the present invention, and most preferably as shown in Figures 2 and 4, but also can be found out by Fig. 5 A, 6B and 7, main stenter pincers main body
20 support 22 is fixed to first/exterior chain connection 51 of endless-chain 50 by vertical pin 29.According to the present invention, this vertical pin
Nail 29 is arranged in parallel to the pin 53 of the first and second/outer and inner chain connection 51,52 for connecting endless-chain 50, and through main drawing
At least one structure division of width machine pincers main body 20.
Vertically pin 29 can be fixed to first/exterior chain of endless-chain by device known to the those skilled in the art
Connection 51.Therefore, those skilled in the art can be according to circumstances specific requirement and select this device.For example, fixation can pass through
Spiral is screwed to the bolt of the end of vertical pin 29 and realizes.However, each suitable fixing means can be applied, as long as its acquisition
Main stenter pincers main body 20 is fixedly secured to first/exterior chain connection 51.
Main stenter pincers main body 20 has such as with this fixation that its support 22 is connected 51 with first/exterior chain of endless-chain
Lower advantage：Due to the tabular surface of the exterior chain connection 51 of endless-chain 50, therefore prevent main stenter pincers main body 20 and its support
22 longitudinal axis for surrounding vertical pin 29 rotate, and thus secure the position of main stenter pincers main body 20 and its support 22,
And realize the Uniform Tension of polymeric material web 100 or polymeric film in whole stretching step.
According to the present invention, and most preferably as shown in Figures 2 and 4, but also can be found out by Fig. 5 A, 6B and 7, secondary stenter pincers main body
30 support 32 is fixed to second/interior chain connection 52 of endless-chain 50 by vertical pin 39.According to the present invention, this vertical pin
Nail 39 is arranged in parallel to the pin 53 of the first and second/outer and inner chain connection 51,52 for connecting endless-chain 50, and through time drawing
At least one structure division of width machine pincers main body 30.
Vertically pin 39 can be fixed to by device known to the those skilled in the art endless-chain 50 second/
Interior chain connection 52.Therefore, those skilled in the art can be according to circumstances specific requirement and select this device.For example, fixation can
The bolt that the end of vertical pin 39 is screwed to by spiral is realized.However, each suitable fixing means can be applied, as long as its
Obtain time stenter pincers main body 30 and be fixedly secured to second/interior chain connection 52.
Secondary stenter pincers main body 30 has with this fixation that its support 32 is connected 52 with second/interior chain of endless-chain 50
Following advantage：Time stenter pincers main body 30 and its support 32 is prevented to rotate around the longitudinal axis of vertical pin 39, thus
The position of time stenter pincers main body 30 and its support 32 is secured, and realizes the polymeric material web in whole stretching step
The Uniform Tension of material 100 or polymeric film.
Fig. 6 A and 6B (are the double stenter pincers of the present invention and the platform component 10 shown in Fig. 5 A at " 6A " and " 6B " place
The section view of main stenter pincers body region) show, in a preferred embodiment of the invention, along track 60
Support moving direction on when observing, main stenter pincers main body rack 22 has the general cross sectional shape of alphabetical " C ".
In a preferred embodiment of the invention, such as main stenter pincers main body rack Fig. 6 A and 6B illustrated in detail
" upper arm " 22a, " back " 22b and " lower lower limb " 22c of 22 general letter " C " shape is arranged with relative to each other vertical position,
And the rigidity of the raising of main stenter pincers main body 20 can be guaranteed during stretching step.
In another preferred embodiment of the present invention, " upper arm " of letter " C " shape of main stenter pincers main body rack
22a and " lower lower limb " 22c is provided and is supported, described to support for passing through the vertical pin 29 by main stenter pincers main body rack
22 first/exterior chain the connections 51 for being fixed to endless-chain 50.Can be the those skilled in the art for fixed this support
Any support for condition as the case may be being provided and being selected.For example, vertical pin 29 can be fixed in the following way：
Vertical pin 29 is guided by suitable hole, vertical pin 29 is fixed by suitable nut for example then, it is described suitable
Hole first/exterior chain connection 51 in and it is general letter " C " shape main stenter pincers main body rack 22 upper arm 22a with
In lower limb 22b.In this way, it is therefore prevented that main stenter pincers main body 20 is rotated around vertical pin axis, thus provide stable
Stretching step.
Can with main stenter pincers main body rack 22 be fixed to first/exterior chain connection 51 separate or combine realization this
In bright another preferred embodiment, the back 22b of the letter " C " of main stenter pincers main body rack can carry tentering board 26
With stenter pincers 28.By this set, main stenter pincers main body rack 22 is capable of achieving along the smooth movement of track, i.e.,
When making that main stenter pincers main body rack 22 is engaged with polymeric material web 100 during stretching step.
Fig. 7 (is the secondary stenter pincers of the double stenter pincers of the present invention and platform component 10 shown in Fig. 5 A at " 7 " place
The section view of body region) show, in a preferred embodiment of the invention, along the support movement side of track 60
When looking up, secondary stenter pincers main body rack 32 has the general cross sectional shape of alphabetical " C ".
In a preferred embodiment of the invention, such as secondary stenter pincers main body rack 32 Fig. 7 illustrated in detail
" upper arm " 32a, " back " 32b and " lower lower limb " 32c of probably letter " C " shape is arranged with relative to each other vertical position, and energy
It is enough that time rigidity of the raising of stenter pincers main body 30 is guaranteed during stretching step.
In another preferred embodiment of the present invention, " upper arm " of letter " C " shape of secondary stenter pincers main body rack
32a and " lower lower limb " 32c is provided and is supported, described to support for passing through the vertical pin 39 by secondary stenter pincers main body rack
32 second/interior chain the connections 52 for being fixed to endless-chain 50.Can be the those skilled in the art for fixed this support
Any support for condition as the case may be being provided and being selected.For example, vertical pin 39 can be fixed in the following way：
Vertical pin 39 is guided by suitable hole, vertical pin 39 is fixed by suitable nut for example then, it is described suitable
Hole second/interior chain connection 52 in and general letter " C " shape secondary stenter pincers main body rack 32 upper arm 23a with
In lower limb 32b.Most preferably seen by Fig. 7 with the position for being fixed to the vertical pin 39 that interior chain connects 52 and upper arm 32a and lower lower limb 32c
Go out.In this way, it is therefore prevented that secondary stenter pincers main body 30 is rotated around vertical pin axis, thus provide smoothly stretching step
Suddenly.
Second can be fixed to secondary stenter pincers main body rack 32/interior chain connection 52 separate or combine realization this
In bright another preferred embodiment, the back 32b of the letter " C " of secondary stenter pincers main body rack can carry tentering board 36
With stenter pincers 38.By this set, smooth movement of the achievable secondary stenter pincers main body rack 32 along track, i.e.,
Make tentering board 36 and stenter pincers 38 and polymeric material in the case where there is no wheel and during stretching step
When web material 100 is engaged.
Fig. 8 A and 8B show the vertical view side plan view of double stenter pincers and platform component 10 of the present invention, wherein being combined with
Two pairs of double main stenter pincers main body-secondary stenter pincers body assemblies 10 (Fig. 8 A) or the three pairs of double main stenter pincers main bodys-
Secondary stenter pincers body assembly 10 (Fig. 8 B).
Such as can find out, on the one hand, main stenter pincers main body 20 and its support from these Fig. 8 A and 8B and Fig. 3 and 5A
22, on the other hand, secondary stenter pincers main body 30 and its support 32 are double stenter pincers and platform component 10 of the present invention
Separate element.They (are connected 51 and second/interior chain company via each of which only indirectly with first/exterior chain of endless-chain 50
Connect 52 fixation) it is connected to each other.By this construction, it is rotatably connected as the chain of endless-chain 50 connects 51,52, obtains
Certain motility of overall assembly 10.As a result, when the main body for including stenter pincers must be passed through during stretching step
During the bending of track, the gauffer of the polymeric material web 100 during stretching step is formed and is reduced and even up to minimum.
For the following fact, the latter is also applicable：Of the invention pair of stenter pincers and platform component 10 it is preferred
Embodiment, stenter platform length is by the value for being only below 2P (pitches of the wherein P for endless-chain 50), particularly 1.5P to 1.96P
Value foreshorten to the value of 0.75P to 0.98P, even more preferably foreshorten to the value of 0.9P to 0.94P.And, it is double as the present invention
When stenter pincers and platform component have to pass through the bending of track 50 during stretching step, shorter stenter platform length makes
Gauffer at polymeric material web 100 is formed and is reached at least.
Such as can find out from Fig. 3,5 and 8A and 8B, the main drawing in region between main and secondary stenter pincers main body 20,30
Secondary drawing in the outer wall of width machine pincers main body rack 22 and the same area between main and secondary stenter pincers main body 20,30
The outer wall of width machine pincers main body rack 32 is moved along track 60 during stretching step in double stenter pincers and platform component 10
In dynamic process in close proximity to each other.However, these outer walls of two elements do not contact with each other, and it is prevented from contacting with each other.
The even more preferably embodiment of of the invention pair of stenter pincers and platform component 10, this is by such as lower section
Formula is realized：The outer wall of the main stenter pincers main body rack 22 relative with the outer wall of secondary stenter pincers main body rack 32 and with master
The outer wall of the relative secondary stenter pincers main body rack 32 of the outer wall of stenter pincers main body rack 22 is provided as with relative
Shaping curvature.This can be found out from the amplification details in Fig. 3,5A, 8A and 8B and Fig. 5 B.
Fig. 5 B are shown with amplifying details, the main stenter pincers relative with the outer wall 30a of secondary stenter pincers main body rack 32
The outer wall 20a of sub- main body rack 22 and the secondary stenter pincers main body relative with the outer wall of main stenter pincers main body rack 22
The outer wall of frame 32 has relative shaping curvature.By the outer wall of two stenter pincers main bodys in region relative to each other
This relative shaping curvature of 20a, 30a, can prevent the contact between wall, thus prevent main stenter pincers main body rack 22
The contact between secondary stenter pincers main body rack 32.
It is even furthermore preferable that an embodiment of double stenter pincers and platform component of the present invention, wherein main stenter
The spill of the opposite outer walls of the convex of the outer wall of pincers main body rack 22 and middle stenter pincers main body rack 32 can be prevented
Only wall contacts of the outer wall of secondary stenter pincers main body rack 32 and adjacent main stenter pincers main body rack 22.
With with prior art polymer sheet stretcher or stretching device similar mode, with suitable lubricant (example
Such as suitable oil) chain for pulling support and wheel is lubricated, the support is run along track on the wheel.In equipment or dress
In the operating process put, any risk, even one drop lubricant/oil are splashed：
The lubricant/oil seepage that lubricant/oil speckle is produced on polymer sheet is unfavorable for being applied in subsequent procedure of processing
The adhesion of the layer (for example producing the metal level of metalized film) of stretched film.In another preferred embodiment of the present invention, to very
To be a small amount of lubricant/oil from chain or wheel spill or leak out to polymer sheet reliability prevent by wall realize,
The wall is even more preferably still equipped with baffle plate to prevent lubricant/oil seepage.
The present invention also relates to another preferred embodiment, the preferred embodiment can it is separate or with as above solve in detail
Realization in double stenter pincers and platform component of one or more combinations in other features released, wherein can will be to be tensioned
The stenter pincers 28,38 that polymeric material web 100 is fixed on tentering board 26,36 can be before stretching circulation starts
Or mechanically or electrically activate after stretching loop ends.This feature is favourable, because along with polymeric material web
At frontside edge firmly grasp polymeric material web 100 the step of and from the step of stenter pincers main body release polymers web of material
The beginning and termination of rapid stretching circulation can be activated automatically.
The present invention also relates to a kind of at least the horizontal sheet material of oriented polymeric material web 100 draws in a lateral direction
Equipment or stretching device 200 are stretched, the equipment includes
- be used to provide at least the one of the polymeric material web 100 of stretched operation at least in a lateral direction to be subjected
Individual device；
- for adjusting at least one device of the temperature of polymeric material web 100 provided in step before；
- can at least stretcher or stretching device of oriented polymeric material web 100 in a lateral direction, the drawing
Stretching equipment or stretching device includes longitudinal path, the multiple pairs of stenter pincers according to book as detailed above and platform component
10th, track, the longitudinal path allow polymeric material web 100 to pass through along which during stretching step；Double drawings
Width machine pincers and platform component 10 can be treated for the front clamp for storing or being processed further in release polymers web of material 100
The polymeric material web 100 of stretching, and along the longitudinal path fixation movement polymeric material web 100 and thus
Stretch the polymeric material web 100；The track in the both sides of the longitudinal path, so as to allow described pair of stenter pincers
Son and platform component 10 are run thereon, and while moved along the longitudinal path by endless-chain 50, and at stretching step end
The starting point of the stretching step is back to after only after release polymers web of material 100；And
- on the stretcher or stretching device 200 before stretching step after for storing polymeric material
The polymeric material web 100 of web 100 or transmission drawn is at least one equipment that is processed further.
The present invention also relates to it is a kind of at least method of oriented polymeric material web 100 in a lateral direction, it is described
Method includes
The polymeric material web 100 of-offer stretched operation at least in a lateral direction to be subjected；
- the polymeric material web 100 provided in step before is fed to into stretcher or stretching device
In drawing path；
The temperature of the polymeric material web 100 that-regulation is fed in step before；
- polymeric material web 100 that temperature is adjusted in step before is fed to stretcher or stretching device, institute
State stretcher or stretching device can at least oriented polymeric material web 100 in a lateral direction, the stretcher or
Stretching device includes longitudinal path, according to multiple pairs of stenter pincers described above and platform component 10, track, it is described vertical
Polymeric material web 100 is allowed to pass through along which during stretching step to path；Described pair of stenter pincers and platform group
Part 10 can be in release polymers web of material 100 for the front clamp that stores or be processed further polymeric material to be tensioned
Web material 100, and fix the movement polymeric material web 100 along the longitudinal path and thus stretch the polymer
Web of material 100；The track is in the both sides of the longitudinal path, and allows described pair of stenter pincers and platform component 10 at which
Upper operation, and while moved along the longitudinal path by endless-chain, and in release polymers after stretching step terminates
The starting point of stretching step is back to after web of material 100；And
- on the stretcher or stretching device 200 before stretching step after store polymeric material web
100 transmit the polymeric material web 100 of drawn for being processed further.
For at least as above horizontal sheet material stretching of the present invention of oriented polymeric material web 100 in a lateral direction
Equipment 200 and at least as above method two of the invention of oriented polymeric material sheet material 100 in a lateral direction
In person, those skilled in the art extremely know plurality of devices and device on the one hand, on the other hand the extremely side of knowing
Method step, during the plurality of devices and device or method and step can be used for the device 200 of the present invention or can be poly- in stretching
Carry out in the method for compound web of material 100 or polymeric film 100, to realize following required purpose：At least in horizontal direction
The polymeric material web or polymeric film 100 of appropriate stretching are obtained after the step of this polymer of upper stretching.Therefore, according to
Situation, those skilled in the art can select this device on the one hand, select this method and step on the other hand, with
The device 200 or method for being used in stretching is suitable to desired parameters.
Non-limiting embodiment is as follows：
Polymer to be tensioned can be provided by the polymeric material that is usually used, and the polymeric material that is usually used is
The those skilled in the art are extremely known, and therefore can be required according to such as final use and be carried out by rights
Select.The nonrestrictive example of this polymer is polyolefin (polyethylene, polypropylene, polyethylene and polyacrylic copolymerization
Thing), (PET=polyethylene terephthalate, which can be by double orientation/be stretched to the poly- right of BOPET=double orientations for polyester
PET), polyvinyl and copolymer (ethylene-vinyl alcohol copolymer) etc..This polymer is in conventional dress
Put in (its nonrestrictive example be extruder and suitable polymer tube blower (tube blower))/above it is shaped to polymerization
Thing web of material, sheet material or film.
According to the knowledge that those skilled in the art can have, this film is usual in a continuous manner, it is also possible to discontinuously
(i.e. after intermediate storage in the form of such as storage roll) is fed to temperature-adjusting device (such as baking oven, plus hot air
Device, heating roller or similar appropriate device), the temperature adjustment of polymer can extremely be carried out this temperature or temperature of drawing process
Degree scope.
In a subsequent step, generally also in a continuous manner (the suitable temperature adjustment in step before utilization) is by Jing
The polymeric material web of heating is fed to stretcher or stretching device 200.The structure of this device 200 and concrete
Construction depends primarily on needs and carries out obtaining concrete stretched operation.Generally, stretching device has longitudinal path, polymer to be tensioned
Web of material 100 or polymeric film 100 are guided along the longitudinal path.It is suitable at the entrance and exit in the path
Roller can adjust polymer to be tensioned.
Further, since needing on horizontal direction that (i.e. (which is so-called " machine in the operation for being typically normal to polymer sheet
Device direction ") direction on) stretched operation, thus provide multiple tracks, generally provide one on every side of polymer path
Individual track.This track is used for the device for moving the promptly lateral edges of polymer material sheet on them, and in longitudinal direction
Side move up when, oriented polymeric material web or polymeric film 100 in a lateral direction.This is with those skilled in the art
Commonly known method and apparatus is carried out, and those skilled in the art may be selected suitable apparatus and method step to carry out stretching step
Suddenly.One (nonrestrictive) example is the flat outer at the center to polymer sheet of the machine direction route generally by sheet material
Track diverging routes.
For the side for firmly grasping polymer sheet before stretching step, during stretching step and after stretching step
The device at edge generally includes tentering board and the stenter pincers for being attached to suitable support.This support is in polymer sheet
Both sides orbit, on roller or on carriage, the operation of support movement can be by for the polymer sheet
Reduce the suitable technology supporting substances of the friction of rolling or sliding process.
In any situation, according to the present invention, exist according to multiple pairs of stenter pincers described above and platform group
Part 10 is at least oriented polymeric material web 100 or the step of polymeric film 100 in a lateral direction.The present invention's is double
Stenter pincers and platform component 10 include the main and secondary stenter pincers with stenter pincers 28,38 and tentering board 26,36
Main body rack 22,32, the main and secondary stenter pincers main body rack 22,32 can firmly grasp polymeric material web to be tensioned
100, along the longitudinal path fixation movement polymeric material web 100 to be tensioned, and thus at least in a lateral direction
Stretch the polymeric material web 100 to be tensioned.
This pair of stenter pincers of the invention and platform component 10 generally and related to its preferred embodiment enter
Row is described above.Therefore, for broadest or in the concrete preferred embodiment of the present invention, this pair of stenter pincers
With platform component can stretcher of the invention and stretching device use, or for oriented polymeric material web 100
Method used in.Another detailed description of the present invention can be omitted herein, with reference to double stenter pincers and platform group of the present invention
Part 10 it is as described above.
The power that main and secondary tentering board and stenter pincers support 22,32 are moved forward is made generally to be passed by two endless-chains 50
Defeated, any one of described two endless-chains 50 is moved parallel to track 60, and is driven by suitable driving means.It is this to drive dress
Put is also, known to those skilled in the art, and can suitably to be selected according to necessary requirement.Concrete preferred but
In non-limiting embodiment, the driving means of driving cycle chain 50 are sprocket wheel, and the sprocket wheel is arranged at circulation
Some (usually entrance and exit) positions in the path of chain 50, and the driving cycle chain 50 under respective speed controlling.
If desired, individually longitudinal stretching step can in a lateral direction oriented polymeric material sheet material the step of before
Or carry out afterwards, but be not steps necessary at least in a lateral direction in this method of oriented polymeric material web.In addition,
In final release steps, polymer material sheet or film 100 can undergo the slight reduction of polymer material sheet length, with steady
The polymeric film of order orientation.
As usual in stretching step (which at least includes transverse stretching step, if being not only made up of transverse stretching step)
After termination, the polymer web of drawn can be passed through along another temperature-adjusting device.This is other thermostatic
Purpose is, after stretching step will polymeric material web 100 or 100 temperature adjustment of polymeric film to by polymer (especially
It is Molecularly Imprinted Polymer chain) " locking " temperature of state for obtaining during stretching step to them, to prevent polymer sheet
Shrink, and make polymer sheet keep machinery and the optical property obtained by stretching process.
Finally, polymeric material web 100 or polymeric film 100 or for example it is processed further or for required mesh at which
Before stored by being wound to suitable storage roller, or be directly processed further, be fed to subsequent setting
Standby or device is further processing (such as image or word are printed on the side of polymer sheet) and for final purpose.
By refer to the preferred embodiments of the invention in detail and the present invention as explained above.However, the present invention does not limit to
Show in the accompanying drawing or description described in embodiment, be especially not limited to those for preferably describing
Embodiment.Preferably in the accompanying drawings show and/or description described in embodiment be used for preferably and/
Or the present invention is more fully understood.
With regard to preferred embodiment description the present invention feature can as single feature or as a feature with it is another
The combination of feature or as a feature and several, and some or combination reality with all other features according to this specification
Apply.All these various combinations of two or more features of the present invention should be considered as being covered by the present invention.
Claims (18)
1. a kind of pair of stenter pincers and platform component (10), which is used to pass through endless-chain (50) on stretcher or stretching device
To move polymeric material web (100), the stretcher or stretching device are used at least stretch institute on horizontal direction (T)
State polymeric material web (100), the endless-chain (50) by alternate first chain connect (51) to and the second chain connection (52)
To composition, alternate first chain connection (51) to and the second chain connection (52) to by parallel to track (60) plane and vertical
The pin (53) arranged in the direction of endless-chain movement is rotatably rotatably connected, and the component (10) includes
- main stenter pincers main body (20), the main stenter pincers main body (20) is including main stenter pincers main body rack
(22), the main stenter pincers main body rack (22) is with by described in the endless-chain (50) along track (60) movement
Multiple wheels (24a, 24b ...) of frame (22), the support (22) of the main stenter pincers main body (20) are fixed to described following
Loop chain (50)；
The support (22) of-main stenter pincers main body (20) also includes main stenter pincers main body tentering board
(26) polymeric material web (100), to be tensioned is fixed to described by main stenter pincers main body stenter pincers (28)
On main stenter pincers main body tentering board (26)；And
The support (22) of-main stenter pincers main body (20) is fixed to the endless-chain by vertical pin (29)
(50) the first chain connection (51), the vertical pin (29) is parallel to connection the first and second chains connection (51,52) and passes through
The pin (53) of at least one structure division of the main stenter pincers main body (20) is arranged；
And the component (10) also includes
- secondary stenter pincers main body (30), described stenter pincers main body (30) is including secondary stenter pincers main body rack
(32), the support (32) of described stenter pincers main body (30) also includes time stenter pincers main body tentering board
(36) polymeric material web (100), to be tensioned is fixed to described by secondary stenter pincers main body stenter pincers (38)
On secondary stenter pincers main body tentering board (36)；And
The support (32) of-described time stenter pincers main body (30) is fixed to the endless-chain by vertical pin (39)
(50) the second chain connection (52), the vertical pin (39) is parallel to connection the first and second chains connection (51,52) and passes through
The pin (53) of at least one structure division of described stenter pincers main body (30) is arranged；
- wherein on two relative sides of the outer wall of the main stenter pincers main body rack (22) adjacent with one or two
The outer wall of the support (32) of described stenter pincers main body (30) is preventing described stenter pincers main body rack
(32) mode of the wall contacts of the outer wall main stenter pincers main body rack (22) adjacent with one or two
Shaping.
2. according to claim 1 pair of stenter pincers and platform component (10), wherein moving in the support along track (60)
When dynamic side looks up, cross sectional shape of the main stenter pincers main body rack (22) with alphabetical " C ".
3. according to claim 1 pair of stenter pincers and platform component (10), wherein the main stenter pincers main body
The upper and lower of the letter " C " of frame provides support, and the support is used to pass through the vertical pin (29) by main stenter pincers
Sub- main body rack (22) is fixed to first chain connection (51) of endless-chain (50), and/or the main stenter pincers main body rack
The back of letter " C " carry main stenter pincers main body tentering board (26) and main stenter pincers main body stenter pincers
(28)。
4. according to claim 1 pair of stenter pincers and platform component (10), wherein moving in the support along track (60)
When dynamic side looks up, cross sectional shape of described stenter pincers main body rack (32) with alphabetical " C ".
5. according to claim 1 pair of stenter pincers and platform component (10), wherein described stenter pincers main body
The upper and lower of the letter " C " of frame provides support, and the support is used to pass through the vertical pin (39) by secondary stenter pincers
Sub- main body rack (32) is fixed to second chain connection (52) of endless-chain (50), and/or described stenter pincers main body rack
Letter " C " back with time stenter pincers main body tentering board (36) and secondary stenter pincers main body stenter pincers
(38)。
6. according to claim 1 pair of stenter pincers and platform component (10), wherein by the main stenter pincers main body
Support (22) is fixed to the described vertical pin (29) of first chain connection (51) of the endless-chain (50) through the main tentering
The upper arm and underarm of " letter C " shape of machine pincers main body rack (22), thus by the main stenter pincers main body rack
(22) it is non-rotatably fixed to the endless-chain (50).
7. according to claim 1 pair of stenter pincers and platform component (10), wherein by described stenter pincers main body
Support (32) is fixed to the described vertical pin (39) of second chain connection (52) of the endless-chain (50) through described tentering
The upper arm and underarm of " letter C " shape of machine pincers main body rack (32), thus by described stenter pincers main body rack
(32) it is non-rotatably fixed to the endless-chain (50).
8. according to claim 1 pair of stenter pincers and platform component (10), wherein first chain is connected as exterior chain company
Connect, and second chain is connected as interior chain connection.
9. according to claim 1 pair of stenter pincers and platform component (10), wherein the main stenter pincers main body
Frame (22) is mobile along the track (60), and is at most on multiple wheels of 10 by the endless-chain (50) in amount total
Pull.
10. according to claim 1 pair of stenter pincers and platform component (10), wherein the main stenter pincers main body
Frame (22) is mobile along the track (60), and is pulled by the endless-chain (50) on multiple wheels that amount total is 9.
11. according to claim 1 pairs of stenter pincers and platform component (10), wherein the main stenter pincers main body
The outer wall of the outer wall of frame (22) and described stenter pincers main body rack (32) has relative shaping curvature, the main tentering
The outer wall of machine pincers main body rack (22) is relative with the outer wall of described stenter pincers main body rack (32), described stenter
The outer wall of pincers main body rack (32) is relative with the outer wall of the main stenter pincers main body rack (22).
12. according to claim 1 pairs of stenter pincers and platform component (10), wherein the main stenter pincers main body
The spill of the opposite outer walls of the convex of the outer wall of frame (22) and middle stenter pincers main body rack (32) is prevented from described
The wall contacts of the outer wall of secondary stenter pincers main body rack (32) and adjacent main stenter pincers main body rack (22).
13. according to claim 1 pairs of stenter pincers and platform component (10), wherein stenter platform length (TL) are selected
In the range of 0.75P to 0.98P (i.e. 0.75P≤TL≤0.98P), pitches of the wherein P for endless-chain (50).
14. according to claim 1 pair of stenter pincers and platform component (10), wherein stenter platform length (TL) are selected
In the range of 0.9P to 0.94P (i.e. 0.90P≤TL≤0.94P), pitches of the wherein P for endless-chain (50).
15. according to claim 1 pairs of stenter pincers and platform component (10), wherein the main and secondary stenter pincers master
The wall of body (20,30) is equipped with baffle plate preventing lubricant/oil seepage.
16. according to claim 1 pairs of stenter pincers and platform component (10), wherein can be by polymeric material to be tensioned
The stenter pincers (28,38) that web material (100) is fixed on tentering board (26,36) can stretching circulation start before or
Mechanically or electrically activated after stretching loop ends.
A kind of 17. horizontal sheet material tensioning systems, which is used at least oriented polymeric material web (100) in a lateral direction, institute
The system of stating includes
- be used to provide at least one of the polymeric material web (100) of stretched operation at least in a lateral direction to be subjected
Device；
At least one device of-temperature of polymeric material web (100) for providing in adjusting the step of before；
- can at least stretcher or stretching device of oriented polymeric material web (100) in a lateral direction, the stretching
Equipment or stretching device include longitudinal path, multiple double stenter pincers according to any one of claim 1 to 11 and
Platform component (10), track, the longitudinal path allow polymeric material web (100) during stretching step along its Jing
Cross；Described pair of stenter pincers and platform component (10) can be in release polymers web of material (100) for storing or enter one
The front clamp of processing polymeric material web (100) to be tensioned is walked, and the movement polymerization is fixed along the longitudinal path
Thus thing web of material (100) simultaneously stretches the polymeric material web (100)；The track in the longitudinal path two
Side, so as to allow described pair of stenter pincers and platform component (10) to run thereon, and while along the longitudinal path by following
Loop chain is moved, and is back to the stretching step after stretching step terminates after release polymers web of material (100)
Rapid starting point；And
- on the stretcher or stretching device (200) before stretching step after for storing polymeric material web
The polymeric material web (100) of material (100) or transmission drawn is at least one device that is processed further.
18. is a kind of at least method of oriented polymeric material web (100) in a lateral direction, and methods described includes
The polymeric material web (100) of-offer stretched operation at least in a lateral direction to be subjected；
- the polymeric material web (100) provided in step before is fed to the drawing of stretcher or stretching device
Stretch in path；
The temperature of the polymeric material web (100) that-regulation is fed in step before；
- polymeric material web (100) that temperature is adjusted in step before is fed to stretcher or stretching device, described
Stretcher or stretching device can at least oriented polymeric material web (100) in a lateral direction, the stretcher or
Stretching device includes longitudinal path, multiple double stenter pincers and platform component according to any one of claim 1 to 11
(10), track, the longitudinal path allow polymeric material web (100) to pass through along which during stretching step；It is described
Double stenter pincers and platform component (10) can be in release polymers web of material (100) for storing or be processed further it
Front clamp polymeric material web (100) to be tensioned, and the movement polymeric material web is fixed along the longitudinal path
Thus material (100) simultaneously stretches the polymeric material web (100)；The track is in the both sides of the longitudinal path, and allows
Described pair of stenter pincers and platform component (10) are run thereon, and while moved along the longitudinal path by endless-chain, and
And the starting point of stretching step is back to after stretching step terminates after release polymers web of material (100)；And
- on the stretcher or stretching device (200) before stretching step after store polymeric material web
(100) or transmission drawn polymeric material web (100) for being processed further.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13167973.0A EP2803473B1 (en) | 2013-05-16 | 2013-05-16 | Dual tenter clip and table assembly and transverse sheet stretching plants comprising same |
| EP13167973.0 | 2013-05-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104162979A CN104162979A (en) | 2014-11-26 |
| CN104162979B true CN104162979B (en) | 2017-04-12 |
Family
ID=48444179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410203467.6A Expired - Fee Related CN104162979B (en) | 2013-05-16 | 2014-05-14 | Dual tenter clip and table assembly and transverse sheet stretching plants comprising same |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10137628B2 (en) |
| EP (1) | EP2803473B1 (en) |
| CN (1) | CN104162979B (en) |
| AR (1) | AR096308A1 (en) |
| BR (1) | BR102014011592A2 (en) |
| IN (1) | IN2014DE01039A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552910B (en) * | 2015-01-12 | 2017-01-11 | 青岛中科华联新材料股份有限公司 | Elastic track plate |
| CN105799149B (en) * | 2016-04-26 | 2019-03-29 | 北京华腾佳和科技有限公司 | A kind of link assemblies, chain and the thin film stretching device for reducing longitudinal contraction rate |
| DE102017115175A1 (en) | 2017-07-06 | 2019-01-10 | Brückner Maschinenbau GmbH & Co. KG | Sliding element in particular for a stretching and / or transport chain and an associated stretching or transport chain |
| DE102017117420A1 (en) | 2017-08-01 | 2019-02-07 | Brückner Maschinenbau GmbH & Co. KG | stretcher |
| KR102199603B1 (en) * | 2020-09-09 | 2021-01-07 | 주식회사 티씨엠에스 | Film clip and film stretching apparatus including the same for manufacturing separation membrane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102015253A (en) * | 2008-04-30 | 2011-04-13 | 林道尔.多尼尔有限责任公司 | Apparatus for stretching film webs transversely |
| CN102395457A (en) * | 2009-04-14 | 2012-03-28 | 东芝机械株式会社 | Film stretching device and film stretching method |
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|---|---|---|---|---|
| US2096283A (en) * | 1935-01-14 | 1937-10-19 | George W Lane | Tenter clip |
| US2285820A (en) * | 1940-07-19 | 1942-06-09 | Winsor & Jerauld Mfg Company | Tenter chain |
| JPS5949939A (en) * | 1982-09-17 | 1984-03-22 | Toray Ind Inc | Link device for stretching sheetlike material and stretching device using it |
| US4807336A (en) * | 1984-01-24 | 1989-02-28 | Toray Industries, Inc. | Link device for stretching sheet material and stretching apparatus using said link device |
| JPS61178356A (en) * | 1985-02-05 | 1986-08-11 | Toray Ind Inc | Stenter |
| DE4241213C2 (en) * | 1992-12-08 | 1999-04-08 | Dornier Gmbh Lindauer | Device for the simultaneous, biaxial treatment of film webs |
| JP3564736B2 (en) * | 1994-07-18 | 2004-09-15 | 東洋紡績株式会社 | Clip device for horizontal stretching machine |
| FR2855452B1 (en) | 2003-06-02 | 2007-04-20 | Darlet Marchante Tech Sa | DRIVING DEVICE FOR A TRANSVERSE STRETCHING SYSTEM OF SYNTHETIC MATERIAL FILMS |
| US8043714B2 (en) * | 2006-04-13 | 2011-10-25 | Fujifilm Corporation | Transparent thermoplastic film and a method of producing the same |
| EP2718091A1 (en) * | 2011-06-10 | 2014-04-16 | Teissier Technique | Clip for stretching a film |
-
2013
- 2013-05-16 EP EP13167973.0A patent/EP2803473B1/en not_active Not-in-force
-
2014
- 2014-04-16 IN IN1039DE2014 patent/IN2014DE01039A/en unknown
- 2014-05-14 CN CN201410203467.6A patent/CN104162979B/en not_active Expired - Fee Related
- 2014-05-14 BR BR102014011592-7A patent/BR102014011592A2/en not_active IP Right Cessation
- 2014-05-14 US US14/277,307 patent/US10137628B2/en not_active Expired - Fee Related
- 2014-05-15 AR ARP140101949A patent/AR096308A1/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102015253A (en) * | 2008-04-30 | 2011-04-13 | 林道尔.多尼尔有限责任公司 | Apparatus for stretching film webs transversely |
| CN102395457A (en) * | 2009-04-14 | 2012-03-28 | 东芝机械株式会社 | Film stretching device and film stretching method |
Also Published As
| Publication number | Publication date |
|---|---|
| US10137628B2 (en) | 2018-11-27 |
| EP2803473A1 (en) | 2014-11-19 |
| IN2014DE01039A (en) | 2015-06-05 |
| AR096308A1 (en) | 2015-12-23 |
| BR102014011592A2 (en) | 2018-12-04 |
| CN104162979A (en) | 2014-11-26 |
| US20140339728A1 (en) | 2014-11-20 |
| EP2803473B1 (en) | 2016-04-13 |
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